001 /**
002 * ===========================================================
003 * LibRepository : a free Java content repository access layer
004 * ===========================================================
005 *
006 * Project Info: http://jfreereport.pentaho.org/librepository/
007 *
008 * (C) Copyright 2006, by Pentaho Corporation and Contributors.
009 *
010 * This library is free software; you can redistribute it and/or modify it under the terms
011 * of the GNU Lesser General Public License as published by the Free Software Foundation;
012 * either version 2.1 of the License, or (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
015 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
016 * See the GNU Lesser General Public License for more details.
017 *
018 * You should have received a copy of the GNU Lesser General Public License along with this
019 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
020 * Boston, MA 02111-1307, USA.
021 *
022 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
023 * in the United States and other countries.]
024 *
025 * ------------
026 * FileContentLocation.java
027 * ------------
028 * (C) Copyright 2006, by Pentaho Corporation.
029 */
030
031 package org.jfree.repository.file;
032
033 import java.io.File;
034 import java.io.IOException;
035
036 import org.jfree.io.IOUtils;
037 import org.jfree.repository.ContentCreationException;
038 import org.jfree.repository.ContentEntity;
039 import org.jfree.repository.ContentIOException;
040 import org.jfree.repository.ContentItem;
041 import org.jfree.repository.ContentLocation;
042 import org.jfree.repository.Repository;
043
044 /**
045 * Creation-Date: 13.11.2006, 12:01:11
046 *
047 * @author Thomas Morgner
048 */
049 public class FileContentLocation extends FileContentEntity implements ContentLocation
050 {
051 public FileContentLocation(final ContentLocation parent, final File backend)
052 {
053 super(parent, backend);
054 }
055
056 public FileContentLocation(final Repository repository, final File backend)
057 {
058 super(repository, backend);
059 }
060
061 public ContentEntity[] listContents() throws ContentIOException
062 {
063 final File file = getBackend();
064 final File[] files = file.listFiles();
065 final ContentEntity[] entities = new ContentEntity[files.length];
066 for (int i = 0; i < files.length; i++)
067 {
068 final File child = files[i];
069 if (child.isDirectory())
070 {
071 entities[i] = new FileContentLocation(this, child);
072 }
073 else if (child.isFile())
074 {
075 entities[i] = new FileContentLocation(this, child);
076 }
077 }
078 return entities;
079 }
080
081 public ContentEntity getEntry(final String name) throws ContentIOException
082 {
083 final File file = getBackend();
084 final File child = new File (file, name);
085 if (child.exists() == false)
086 {
087 throw new ContentIOException("Not found.");
088 }
089 try
090 {
091 if (IOUtils.getInstance().isSubDirectory(file, child))
092 {
093 throw new ContentIOException("Not sub-directory");
094 }
095 }
096 catch (IOException e)
097 {
098 throw new ContentIOException("IO Error.");
099 }
100
101 if (child.isDirectory())
102 {
103 return new FileContentLocation(this, child);
104 }
105 else if (child.isFile())
106 {
107 return new FileContentItem(this, child);
108 }
109 else
110 {
111 throw new ContentIOException("Not File nor directory.");
112 }
113 }
114
115 public ContentItem createItem(final String name) throws ContentCreationException
116 {
117 final File file = getBackend();
118 final File child = new File (file, name);
119 if (child.exists())
120 {
121 throw new ContentCreationException("File already exists.");
122 }
123 try
124 {
125 if (child.createNewFile() == false)
126 {
127 throw new ContentCreationException("Unable to create");
128 }
129 return new FileContentItem(this, child);
130 }
131 catch (IOException e)
132 {
133 throw new ContentCreationException("IOError while create");
134 }
135 }
136
137 public ContentLocation createLocation(final String name)
138 throws ContentCreationException
139 {
140 final File file = getBackend();
141 final File child = new File (file, name);
142 if (child.exists())
143 {
144 throw new ContentCreationException("File already exists.");
145 }
146 if (child.mkdir() == false)
147 {
148 throw new ContentCreationException("Unable to create");
149 }
150 return new FileContentLocation(this, child);
151 }
152
153 public boolean exists(final String name)
154 {
155 final File file = getBackend();
156 final File child = new File (file, name);
157 return (child.exists());
158 }
159 }